124 DR. A. G. BUTLER OX BUTTERFLIES [Jan. 14, 



2 , Kondowi, 4110 feet alt, Lower Nyika, Jan. 1895. 



" Taken by M. Moffat, Esq., Livingstone's Mission, and given 

 to me " (R. (7.). 



New to the general Museum series ; unfortunately it has lost 

 its abdomen. 



Among the Pierince, Mr. Crawshay's collection contains several 

 rare and interesting species. 



69. MYLOTHRIS AGATHINA. 



Papilio agaihina^ Cramer, Pap. Exot. iii. pi. ccxxxvii. D, E 

 (1732). 



<5 , Henga, Feb. 1st ; Mtambwi, Feb. 4th ; Mrali, March 2nd ; 

 $ , Vuwa sand-flats, W. coast of Lake Nyasa, March 3rd, 1895. 



" Scallop-shell White " (E. (7.). 



70. MYLOTHRIS NARCISSUS, var. DENTATUS. (Plate VI. fig. 3.) 

 rf 9 . MylotJiris narcissus, Butler, P. Z. S. 1888, p. 95. 



3 , Kantorongondo Mt., Nyika, 5900 feet alt., April 15th, 

 1895. 



" Chrome-yellow underwing White " (R. C.). 



The form now received differs from the typical male from 

 Kiliina-njaro in having the costal black border continuous, only 

 interrupted by the upper discocellular veinlet ; a diffused black 

 streak in the cell above the median vein, the outer border acutely 

 quinque-dentate ; and sometimes a little oblique black streak below 

 the submedian nervure and a broad apical black bar uniting the 

 first two marginal spots of the secondaries : in some respects it 

 more nearly resembles the typical female than the typical male 

 does, while Miss Sharpe's M.jacksoni more nearly corresponds 

 with typical male M. narcissus. Unless we have here three very 

 closely allied species, it must be assumed that M. narcissus is 

 dimorphic; a better series will doubtless solve the problem. 



71. MYLOTHRIS CRAWSHAYI, sp. n. (Plate VI. fig. 4.) 



A very perfect copy, in both sexes, of Phrissura lasti, and there- 

 fore intermediate in character between M. narcissus and M.trimeni: 

 in size, form, and colouring the male resembles the latter, but the 

 apical patch extends in an oblique curve from just beyond the 

 cell to the third median branch, its inner edge being zigzag, the 

 remaining marginal spots not included in this patch are hastate ; 

 the base of the wings is slightly more heavily blackened than in 

 M. trimeni and the marginal spots of the secondaries reduced to 

 mere points ; on the under surface the apex of primaries and entire 

 surface of secondaries are bright lemon-yellow instead of saffron- 

 yellow. Expanse of wings 57-64 millim. 



The female has pearl-white primaries, the cell, costal border, and 



base of internal border densely dusted with smoky grey ; an 



oblong patch of the same colour at external angle ; the apical area 



and outer border to below the first median branch smoky grey, 



[13] 



